The main symptom of sinusitis is lack of ventilation, so the treatment of sinusitis should be done with a partial membrane constrictor such as 1% ephedrine or nasal drip or Daphnelean nasal drip. The number of dots per day is required to maintain ventilation. If ventilation cannot be maintained after medication, surgical treatment such as turbinate removal or electrocautery is required. Sinusitis is a purulent inflammation in the sinuses, dominated by a runny nose and headache, and is treated with antibiotics to eliminate bacterial infection in the sinuses, in addition to drops of nasal taxa constrictors, or with maxillary sinus puncture. If necessary, sinus radical surgery should be performed. In sinus radical surgery, functional endoscopic sinus surgery, with the help of good endoscopic illumination, can therefore completely remove the lesion and preserve as much as possible the normal mucosa and structure of the nasal cavity and the paranasal sinuses to form good ventilation and drainage, and nowadays the minimally invasive endoscopic technique without incision has been widely used in clinical practice.